<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>双飞翼</title>
		<style type="text/css">
			* {
				margin: 0;
				padding: 0;
			}

			#left,
			#center,
			#right {
				float: left;
			}

			#left {
				width: 200px;
				height: 200px;
				background-color: pink;
				margin-left: -100%;
			}

			#center {
				width: 100%;
				height: 200px;
				background-color: red;
			}

			#right {
				width: 200px;
				height: 200px;
				background-color: yellow;
				margin-left: -200px;
			}
		</style>
	</head>
	<body>
		<div id="root">
			<div id="center">
				<p>1111111</p><br>
				<p>2222222</p><br>
				<p>3333333</p><br>
			</div>

			<div id="left">

			</div>


			<div id="right">

			</div>
		</div>


	</body>
</html>
